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CONTINENTAL CARBON INC

Overview
  • Total Patents
    15
About

CONTINENTAL CARBON INC has a total of 15 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, machines and materials and metallurgy are CHICAGO TELEPHONE SUPPLY CO, KOHRING WILBUR M and SHANGHAI CHANGYUAN WAYON CIRCU.

Patent filings in countries

World map showing CONTINENTAL CARBON INCs patent filings in countries
# Country Total Patents
#1 United States 11
#2 United Kingdom 4

Patent filings per year

Chart showing CONTINENTAL CARBON INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Benkelman Glen F 5
#2 Jira Joseph W 4
#3 Kohring Wilbur M 1
#4 William Jira Joseph 1

Latest patents

Publication Filing date Title
GB640323A Metal film resistor
GB640739A Protective coating for resistors
GB692921A Improvements in or relating to the production of electrical resistors
US2440691A Alloy metal film resistor
US2457678A Resistor and method of making
US2400647A Attachment insert
US2357473A Protective coating for resistors
US2281843A Metal film resistor
US2244548A Resistor and method for making same
US2096550A Dielectric material and process of making the same
GB426490A Improvements in or relating to stabilized resistance elements
US1992410A Electrical control unit and method of making same
US1909248A Electric terminal and resistance device
US1909247A Electrical resistance device
US1929396A Resistance element